Referring to the monitor system of expressway, this article puts forward the theory of "network camera", which is composed with digital camera and network unit.

提出了由数码相机和网络单元组成的网络相机的理念以及基于此的可视化全程监控系统的设计。

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The software design and hardware implementation of the total system are also proposed, the embedded platform of monitor unit and implementation of GPRS function is discussed chiefly.

文中给出了整个系统的软、硬件设计方案，并重点讨论了监测节点嵌入式平台和GPRS通信功能的设计与实现方法。

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The colour industrial monitor with high performance is introduced in this paper. The emphases are put on the system composition and the operation principle of the graph unit and the character unit.

介绍一种高性能彩色工业监视器的设计方法，重点叙述了系统构成及图形、字符单元的工作原理。

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